Display device



FIG. 1 is a front right perspective view of a display device;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines shown in FIGS. 1-6 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a display device, as shown and described. 